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Manufacture | Model/Title | Price | Arrival date

Model 5U.S.A

This item has been sold.You can't purchase now. 24-42517-07721-00
Model 5
Manufacture:marantz
Price: JPY 725,455(pair)Sold Out
U.S.A 1958 made
Arrival: 2024-05-21 20:01:30
description
Maintenance was carried out, including the replacement of internal deteriorated capacitors! This is Marantz's masterpiece power amplifier model 5, which has not arrived in a long time. Not only is the range unbelievably wide when viewed from the year it was released, but the excellent driving power and glossy tone are truly a masterpiece with a high reputation. There are scratches and paint peeling on the exterior. Serial 1017/1024 (Fujisawa Yukishi) Maintenance information: 2024.5.21 Maintained (AC cord film deterioration → rewiring procedure. ◎ Common · 1 x 2 inch nuts added for bottom legs (please be careful when opening the back side) · 20 μF or other deterioration replacement and additional 4 x 2 · selenium deterioration → diode addition, BIAS and AC BAL readjustment, vacuum tube socket and RCA jack caulking repair. *Other operation checks have been performed (measured at 30 to 41 W SP: 8 Ω at rated output AC 100 to 117 V) Accessories: No accessories Main specifications: mono tube power amplifier output 30W (UL connection) EL34 push pull W152 x H186 x D378 mm 13.4 kg

PROFESSOR-2Japan

Ask 24-42575-08273-00
PROFESSOR-2
Price: JPY 316,364
Japan
Shop: Osu shop
Arrival: 2024-05-21 19:57:21
description
Maintained. 300B single amplifier using all Tamura transformers. It is a configuration that firmly holds the basics of a single amplifier using a rectifier tube. Furthermore, you can use it safely with 300B DC ignition with a regulator (Oikawa Tetsuji) Maintenance information: 2024.5.21 maintained (2 main volume gang error replacements, CV378/GZ37 deterioration replacement, RCA jack and vacuum tube socket caulking repair*Other operation checked with AC100V (rated output measured at 8W SP: 8Ω)) Accessories: none Main specifications: used vacuum tube 300B 6SL7/GZ37/5U4G/5X4G output 7W x 2 W430 x D215 x H210 mm 19 kg

MARK-3U.S.A

This item has been sold.You can't purchase now. 24-42926-11124-00
MARK-3
Manufacture:DYNACO
Original price: JPY 174,000
Price: JPY 134,545(pair)Sold Out
U.S.A 1976 made
Shop: Osu shop
Arrival: 2024-05-20 20:13:08
description
Maintained in December 2020! DYNACO's tubular mono power amplifiers are highly popular. The sleek, straight, and energetic sound that comes out of the small body is attractive. Combinations with Altech and JBL are a staple, and they make jazz and rock sounds powerful and full of realism. There is discoloration and dullness on both channel bottom plates (Sasaki Shota) Maintenance information: 2020.12.25 maintenance (6AN8 replacement on one side. Common block capacitor 30/20/20 μF replacement. Replace 1 x 2 film capacitors with 0.1 μF or other oil capacitors. Replace 3 x 2 Mylar capacitors with 390pF. 1 x 2 Vacuum Tube Socket and RCA Jack Caulking Repair (Other rated output: 36 to 55 W at AC 100 to 117 V, measured at SP: 8 Ω, operation check) Accessories: none Main specifications: tubular mono power amplifier using vacuum tube 6550/5AR4/6AN8A output 60W/140W W229 x H190 x D229 mm 11.5 kg/unit

C22U.S.A

This item has been sold.You can't purchase now. 24-42507-07588-00
C22
Manufacture:McIntosh
Price: JPY 543,636 Sold Out
U.S.A 1962 made
Arrival: 2024-05-19 19:59:03
description
Maintained! An original C22, a famous machine admired by enthusiasts. The thick, soft, and strongly extruded tone is a pleasant tone that can only be experienced with an old McKinn. It has a rich tone centered around the middle range with a high concentration, and it sounds with plenty of realism. The exterior has a feeling of use such as dullness and small scratches. Serial 44A12 (Hiroki Aso) Maintenance information: 2024.5.19 maintained (main volume A curve replaced with the original vacuum tube 12AX7 noise replacement oil capacitor 0.01 μF domestically manufactured in the USA) replacement block capacitor 40/20/20/1000 μF other defective and deterioration replacement electrolytic capacitor 1000 μF additional electrolytic capacitor 40 μF other deterioration replacement switching noise reduction measures 1/4 W additional resistance 1/2 W deterioration replacement short (Additional pin vacuum tube socket, RCA jack caulk repair, and other operation checked with AC 100 to 117 V) Accessories: A copy of the English instruction manual Main specifications: 117 V specification, 4 input systems, 2 phono systems, frequency characteristics, 20 Hz to 20 kHz (± 0.5 dB), signal-to-noise ratio, 85 dB (high level), 62.5 dB (low level), distortion ratio 0.2%, W406 x H138 x D330 mm, 7.3 kg

MC240U.S.A

Ask 24-42507-07589-00
MC240
Manufacture:McIntosh
Price: JPY 452,727
U.S.A 1960 made
Arrival: 2024-05-19 20:00:00
description
Maintenance has been completed, such as replacing capacitors and replacing deteriorated parts! It is a famous machine with a velvet transformer, and you can enjoy rich sound with stable operation. The fresh, glossy tone in the mid-high range has a different appeal from the MC275. The exterior has a feeling of use over time, such as dullness and small scratches (Hiroki Aso) Maintenance information: 2024.5.19 Maintained (volume curing improvement treatment for TWIN, 2W oil capacitor replaced with 0.01μF, 3W oil capacitor replaced with 0.5 μF, missing thermistor, replacement, 250μF, domestic CE replacement, block capacitor 100/30 μF defective replacement, oil capacitor 0.22 μF defective replacement electrolytic capacitor 20μF, etc. Deterioration replacement resistor 2W deterioration replacement Vacuum tube socket and RCA jack caulking repairs ※ Other operation checks have been performed (measured at 41 to 58 W with rated output AC 100 to 117 V, SP: 8 Ω) ※ The power transformer groans a little, but there is no problem with performance) Accessories: A copy of the English instruction manual Main specifications: 40W+40W 6L6GCPP vacuum tube 6L6GC × 4 12AX7 × 3 12AU7x2 12BH7 × 2 frequency characteristics 16 to 40,000 Hz dimensions W400 × D265 × H195 mm weight 25 kg

MQ60Japan

Ask 13-78888-12767-00
MQ60
Manufacture:LUXMAN
Original price: JPY 79,000
Price: JPY 152,727
Japan 1969 made
Arrival: 2024-05-19 19:59:31
description
Fully maintained! The main part of the SQ38F is an independent power amplifier, the famous MQ60. The natural, smooth sound quality with a high sense of transparency is attractive. You can relax and enjoy classical music and vocals in a natural way. The deep sound quality that cannot be expressed with the latest vacuum tube amplifiers is exceptional. The exterior has dullness, small scratches, and paint peeling. Serial 473753 (Hiroki Aso) Maintenance information: 2024.5.19 maintained (vacuum tube socket block capacitor electrolytic capacitor oil capacitor SP and RCA terminal semi-fixed VR fuse holder replacement load test (8Ω load 1kHz 30W/30W) input/output waveform confirmation sound output check performed impedance switching SW gain VOL disassembly contact refinement oxidation and sulfidation prevention grease coating input/output waveform confirmation load test (1 kHz) (Sine wave at 8Ω load: 30W+30W) sound output test) Accessories: copy of instruction manual Main specifications: output 30W+30W dimensions W410 x H160 x D205 mm weight 13.8 kg

SV-91BJapan

Ask 24-42617-08579-00
SV-91B
Manufacture:SUNVALLEY
Original price: JPY 482,000
Price: JPY 198,182
Japan
Shop: Osu shop
Arrival: 2024-05-18 19:59:12
description
The price has been reduced. 2024/5/18 sales price 228,000 yen Sun Valley Western 91 300B single amplifier. It plays a spacious and powerful sound, and while the output is 8W+8W, it is a very practical and high quality model. The balanced yet glossy tone from low to high frequencies is attractive. The internal relay has been modified, and the power supply can be switched on and off with a single switch. There is writing on the main body (Sasaki Shota) Maintenance information: 2024.5.18 Maintained (missing screws added. Subchassis installation defect correction. Fix solder defects. Vacuum tube pin cleaning. Condenser position correction. Solder dregs and wire breakage scum removed* Bias checked and output sound checked. (Current load IMP is set to 8 ohms) Accessories: manual, power cable Main specifications: output 8W+8W vacuum tube 300B ✕ 2 310A x 4 5U4G ✕ 1 W400 x H210 x D300 mm weight 23 kg

MODEL 7U.S.A

This item has been sold.You can't purchase now. 24-42552-08053-00
MODEL 7
Manufacture:marantz
Original price: JPY 159,000
Price: JPY 725,455 Sold Out
U.S.A 1959 made
Arrival: 2024-05-15 19:28:02
description
Maintained! Original Model 7 You can enjoy a glossy mid to high range sound with a high sense of transparency and a thick, exquisite balance. It's a model that has been over half a century since it went on sale for analog fans, but it's still one they admire. The lustrous, indescribable tone is an appeal that cannot be enjoyed on modern devices. You can see a feeling of use, such as appearance, dullness, small scratches, etc. Serial 7-14836 (Kobayashi Hitoshi) Maintenance information: 2023.5.20 maintained (balance volume B curve → MN curve replaced, block capacitor, 50 μF x 3, oil capacitor, 0.1 μF, other deterioration replacement, 8 electrolytic capacitors, 200 μF deterioration replacement, 2 vacuum tubes, 12AX7 deterioration replacement, 2 shield case replacement, high pressure selenium deterioration countermeasures → diode addition, side pad deterioration exchange, vacuum tube socket and RCA jack caulking repair, etc. Operation has been checked with AC 100 to 117 V) Accessories: none Main specifications: tubular control amplifier, vacuum tube, ECC83/12AX7, 3-stage NF equalizer, NF type step switching control, W453 x H185 x D267 mm, weight 7.5 kg

5691

Ask 24-42673-10190-00
5691
Manufacture:SYLVANIA
Price: JPY 10,000
Shop: Osu shop
Arrival: 2024-05-17 19:44:17
description
Sold 1 bottle, 6SL7 high-reliability tube, made in America, red brown base, black plate, measured value 58 (rejected value 32) with original box ※The measured values indicate gM values measured with the testing machine TV-7 (Kojima Yosuke) Accessories: original box

6CA7

This item has been sold.You can't purchase now. 24-42673-09993-00
6CA7
Manufacture:HITACHI
Price: JPY 11,818(pair)Sold Out
Shop: Osu shop
Arrival: 2024-05-17 19:44:05
description
Pair tube EL34 compatible sphere made in Japan black plate measured value 54/54 (rejected value 30) with white box, the printing design is different on the left and right, but the internal structure is the same ※Pairs are judged based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: white box

6L6WGB

Ask 24-42673-09994-00
6L6WGB
Manufacture:TUNG SOL
Price: JPY 14,545(pair)
Shop: Osu shop
Arrival: 2024-05-17 19:43:46
description
Pair tube, ambient heat beam tube, 5881 equivalent tube, made in America, JAN brown base measurement value 42/42 (rejected value 25) with white box ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: white box

6CA7

This item has been sold.You can't purchase now. 24-42673-09991-00
6CA7
Manufacture:HITACHI
Price: JPY 13,636(pair)Sold Out
Shop: Osu shop
Arrival: 2024-05-17 19:43:43
description
Pair tube EL34 compatible ball, black plate, made in Japan, measured value 54/54 (rejected value 30) with original box ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box

6CA7

Ask 24-42673-10189-00
6CA7
Manufacture:HITACHI
Price: JPY 4,091
Shop: Osu shop
Arrival: 2024-05-17 19:43:36
description
Sold 1 bottle EL34 compatible ball, made in Japan, black plate, measured value 52 (rejected value 30) with original box, there is a slight getter burn ※ pairs are judged based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box

TU-C360

This item has been sold.You can't purchase now. 24-42848-10439-00
TU-C360
Manufacture:LUXMAN
Price: JPY 27,273 Sold Out
Shop: Osu shop
Arrival: 2024-05-16 20:22:09
description
The Luxman selected tube set 12AX7 x 3/12 AU7 x 5 (with LUXMAN logo) 12AX7 is a GE print with the same structure as Siemens from the same period made in Yugoslavia, and the 12AU7 is a high-reliability type (6189) measuring instrument made by GE and seems to be an unused item due to the state of the tube measured by the TV-7 measuring instrument TV-7 made by GE! (KOJIMA Yosuke) Accessories: original box, warranty card

TU-M360

This item has been sold.You can't purchase now. 24-42848-10438-00
TU-M360
Manufacture:LUXMAN
Price: JPY 70,909 Sold Out
Shop: Osu shop
Arrival: 2024-05-16 20:22:08
description
MQ-360 vacuum tube set Lux selected product 6550A x 4, 12AU7 x 2, and 6FQ7 x 2 configurations 6550A is made by GE, 1 12AU7 is made in Yugoslavia, the other is a GE black plate specification, and the 6FQ7 all seem to be made by GE, and the printing is peeling due to aging, but it seems that it is an unused item due to tube condition! Both spheres have already been measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box, warranty card

HiFi FU19

Ask 24-42874-10637-00
HiFi FU19
Manufacture:Nobsound
Price: JPY 16,182
Arrival: 2024-05-16 20:19:14
description
※Since it is cheap, it will be handed over as is. Chinese vacuum tube amplifiers have arrived. The vacuum tube uses FU32, and is compact and designed to be just the right size for a desktop, etc. There is a thread on the exterior (Tamura Eiji) Maintenance information: 2024.5.16 Operation confirmed Accessories: none Main specifications: 4W x 2 (4Ω) frequency response 26 to 38 kHz W296 x H150 x D210 mm weight 5.7 kg

6P1

Ask 24-42874-10636-00
6P1
Manufacture:Nobsound
Price: JPY 18,000
Arrival: 2024-05-16 20:19:12
description
※Since it is cheap, it will be handed over as is. This is a compact Chinese vacuum tube amplifier. It comes with a VU meter, so you can enjoy looking at it. The size is designed to be just right for desktops, etc. There is a thread on the exterior (Tamura Eiji) Maintenance information: 2024.5.16 Operation confirmed Accessories: none Main specifications: Vacuum tubes used: 6SN7GT x 2, 5Z4P x 1, 6N1N x 4, W260 x H145 x D253 mm, weight 5.5 kg

STEREO70U.S.A

Ask 24-42159-04894-00
STEREO70
Manufacture:DYNAKIT
Original price: JPY 69,800
Price: JPY 86,182
U.S.A 1958 made
Shop: Osu shop
Arrival: 2024-04-11 20:16:10
description
The disposal price has been reduced. Member prices are not applicable. 2024/4/11 sales price 118,000 yen ※It's cheap because it doesn't have a hood. Maintained! Vacuum tube stereo power amplifier. The bright and fresh sound typical of DYNACO is attractive. This is an amplifier I want to play in combination with JBL, Altec, etc. The grill is missing, and there is a feeling of use due to aging (Daiki Goto) Maintenance Information: 2024.4.11 Maintained (· Block Capacitor 30/20/20 μF Defect Replacement · Stereo/Mono Switch Defect Replacement · Shock Noise Improvement Measures → Spark Killer Addition · Vacuum Tube 7199 Noise Exchange · Mylar Capacitor 390pF Deterioration Replacement 2 · Resistors 1/2 W Deterioration Replacement · BIAS Readjustment · Vacuum Tube Socket and RCA Jack Caulking Repair. *Other operation checks have been performed (measured at 32 to 41 W SP: 8 Ω at rated output AC 100 to 117 V) Accessories: instruction manual Main specifications: rated output 35W+35W vacuum tube EL34 x 4 7199 x 2 GZ-34 x 1 W330 x H165 x D240 mm 12.5 kg

CDP-X5000Japan

This item has been sold.You can't purchase now. 24-42374-06568-00
CDP-X5000
Manufacture:SONY
Original price: JPY 120,000
Price: JPY 107,273 Sold Out
Japan 1995 made
Shop: Osu shop
Arrival: 2024-05-15 19:15:05
description
Maintained! A famous player that is still extremely popular even now, 20 years after its release. Despite its exceptional design and compact size, its sound quality is authentic, with thickness and depth unique to the heyday of CDs. It is a famous machine that is still highly popular today. The exterior is dull overall ※The remote control is out of stock (Oikawa Tetsuji) Maintenance information: 2024.5.15 Maintained (replaced and power supply resistor replaced due to FL tube drive IC failure. All operation switches have been replaced due to dust and dirt inside the main unit. Due to poor contact with the door opening/closing detection switch, the switch part was disassembled and the interior was polished and cleaned. Disassemble the SPDL motor, refill the bearing part with oil, and apply slide rail cleaning oil. (The optical system has been cleaned) Accessories: instruction manual, stabilizer, power cable Main specifications: frequency characteristics 2 Hz to 20 kHz terminal shape pin jack Coaxial digital output/coaxial connector optical digital output/optical output connector dimensions W280 x H90 x D370 mm weight 6.0 kg

Model 4Japan

This item has been sold.You can't purchase now. 24-42850-10462-00
Model 4
Manufacture:Softone
Original price: JPY 68,000
Price: JPY 45,273 Sold Out
Japan
Arrival: 2024-05-15 19:09:54
description
M/MC compatible A tubular phono equalizer developed with the aim of better analog reproduction. You can enjoy a warm, natural sound using a vacuum tube non-feedback amplifier and a CR-type equalizer. The impedance can be switched according to the cartridge. Externally, there are line scratches on the top plate. Serial 00180 (Yonejima Satoshi) Maintenance information: 2024.5.15 Operation confirmed Accessories: power cable Main specifications: MM/MC compatible 12AX7 (ECC83) x 2 W300 x H100 x D260 mm 4.8 kg

DS-77EXJapan

Ask 24-42598-08360-00
DS-77EX
Manufacture:DIATONE
Original price: JPY 124,000
Price: JPY 43,000(pair)
Japan 1985 made
Arrival: 2024-05-09 19:48:37
description
The price has been reduced. 2024/5/9 sales price 49,800 yen Woofer edge softening treatment! A classic model that uses carbon graphite on woofer cone paper. The high and middle ranges have a core yet are glossy, and the low frequencies are tight. It is a well-balanced speaker and is suitable for a wide range of genres. In particular, the vocals in combination with a vacuum tube amplifier are excellent. You can enjoy the enchanting diatone sound. As for the exterior, the frame has rust, scuffs, dullness, etc., and there is a feeling of use (Murakoshi Yoichi) Maintenance information: 2024.5.7 maintenance (exterior cleaning, edge softening treatment) Accessories: saran net Main specifications: 3 way, 3 speakers, sealed impedance 6 ohms, W380 x H680 x D325 mm, 21 kg

A3500Japan

Ask 24-89024-10449-00
A3500
Manufacture:LUXKIT
Original price: JPY 79,800
Price: JPY 143,636
Japan 1972 made
Arrival: 2024-05-12 19:44:30
description
The A3500 vacuum tube power amplifier has been refreshed by thorough maintenance down to the smallest details, such as volume disassembly and polishing. The warm, fresh tone, filled with the appeal of a vacuum tube type, is still appealing enough today. You can enjoy music with a rich, thick tone that contrasts with the clicking tones of recent vacuum tube amplifiers. As for the exterior, paint deterioration and peeling can be seen on the transformer on one side, and there is a feeling of use such as dullness, small scratches, etc., and there is a dent in the hood. ※3-pole tube connection specification. 20W+20W (actual measurement) is output as specified by the manufacturer (Takasaki Atsushi) Maintenance information: 2023.2.3 maintained (main tube (6CA7) replacement vacuum tube socket, block capacitor, electrolytic capacitor, oil capacitor, SP and RCA terminals, complete disassembly of semi-fixed VR replacement power input gain volume, contact polishing, anti-oxidation/sulfation grease coating load test (8Ω load 1kHz 20W+20W) input/output waveform confirmation sound output check performed) Accessories: copy of the manual Main specifications: 20W+20W (8Ω) vacuum tube 6CA7×4/6AQ8×3 W465×H168×D206mm 16kg

33+303+FM3UK

Ask 24-42417-06784-00
33+303+FM3
Manufacture:QUAD
Original price: JPY 120,000
Price: JPY 252,727
UK 1967 made
Shop: Osu shop
Arrival: 2024-05-04 20:12:14
description
※The wood cabinet is being repaired. Maintained! This is a full set that combines 33 QUAD original transistor preamps and 303 power amplifiers with tuner FM3. Comes with a wood case that allows 33 and FM3 to be built in parallel. The impression is that the natural atmosphere has definitely increased, and the glossy way it rides and the sound that goes through the core make you think it's a vacuum tube amplifier (Oikawa Tetsuji) Maintenance information: 2024.5.4 maintained (internal check, power supply, filter C, HPX circuit C, etc., there are many differences in capacity → replacement f cover misalignment → readjust, tuning indicator lamp back change, DIN SP-RCA female cable damaged → created) Accessories: power cable, connection cable (2 types: DIN-RCA and DIN-DIN types), copy of the instruction manual, FM coaxial connector Main specifications: external dimensions W550 x H113 x D220 mm, weight approx. 7.0 kg (actual measurement) [33] 3 input/line systems, 1 phono system (MM) [FM3] tubular FM dedicated tuner with automatic stereo/mono switching

MQ68CJapan

Ask 24-42736-09463-00
MQ68C
Manufacture:LUXMAN
Original price: JPY 89,000
Price: JPY 152,727
Japan 1978 made
Arrival: 2024-05-11 20:13:22
description
Maintained in 2023. After all, the warm, and glossy sound quality is excellent for stringed instruments. It has a soft and vivid sound not found in transistors, making it perfect for listening for long periods of time. In addition to noticeable scuffs and paint peeling on the exterior and transformer area, dullness and a feeling of use can be seen. Serial F0800283 (Murakoshi Yoichi) Maintenance information: 2023.7.23 maintained (vacuum tube socket block capacitor electrolytic capacitor oil capacitor SP and RCA terminal semi-fixed VR fuse holder replacement load test (8Ω load 1kHz 25W+25W) input/output waveform confirmation sound output check performed gain VOL NFB switching SW disassembly contact refinement to prevent oxidation and sulfation grease coating input/output waveform confirmation distortion load test (1 kHz (25W+25W at sine wave 8Ω load) sound output test) Accessories: copy of instruction manual Main specifications: 50CA10 push-pull output 30W+30W W410 x H183 x H160 mm 13.8 kg

ARDEN2UK

Ask 24-42207-05233-00
ARDEN2
Manufacture:TANNOY
Original price: JPY 478,000
Price: JPY 270,909(pair)
UK 1979 made
Shop: Osu shop
Arrival: 2024-05-11 20:17:47
description
Both the interior and exterior have been fully restored and refreshed! This is the second generation of Tannoy's famous machine ARDEN. The warm and soft tone is attractive. It plays all kinds of music lusciously and gently. In particular, it works great with vacuum tube amplifiers, and the sense of orchestra scale and smooth playback of stringed instruments are satisfying enough to listen to. It is beautiful due to exterior repairs (Sasaki Shota) Maintenance information: 2024.5.10 Maintained (exterior repair/polishing/oil finish. Front and rear baffles/hakama repair/painting. Saran net replacement/frame repair/reinforcement. Unit maintenance: low range/edge exchange, magnetic circuit gap cleaning/center adjustment, high pass/magnetic circuit rust removal/gap cleaning/center adjustment. Network maintenance: frequency characteristic check, ATT cleaning, faston terminal replacement, terminal cleaning) Accessories: none Main specifications: 2 way, 1 speaker, bass reflex system, floor type specification unit 3828, crossover frequency, 1 kHz, output sound pressure level, 91.5 dB, 8 ohms, dimensions W660 x H990 x D370 mm, weight 43 kg/book

MODEL 7KU.S.A

Ask 24-42525-07757-00
MODEL 7K
Manufacture:marantz
Price: JPY 361,818
U.S.A 1979 made
Arrival: 2024-05-10 19:55:16
description
It has been refreshed and maintained to brush up by replacing block capacitors, etc.! Kit version of the masterpiece model 7. The parts that can be obtained at the beginning of sale remain the original, and those that are missing use similar parts, and it is a 25th anniversary model that appeared with almost the same structure as the original. As a vacuum tube preamp, you can hear a slightly different tone from other models. There are line scratches on the wood case on the exterior. Serial F030105 (Murakoshi Yoichi) Maintenance information: 2024.5.9 maintenance (main volume disassembly cleaning repair, selector disassembly contact strengthening repair, block capacitor, fuse holder cap replacement, short pin addition, vacuum tube socket and RCA jack re-caulking repair. Operation has been checked with AC100V) In order to bring the volume curve closer to the original, the OUT LEVEL on the back is narrowed down. 2018.7.15 Maintained (vacuum tubes 12AX7 x 2 replaced, oil capacitors 0.47 μF replaced with BlackBeauty, replaced with 0.33 μF x 2 film capacitors. RCA jack earth reinforcement and caulk repair. Vacuum tube socket caulk repair. Other operations have been checked) Accessories: none Main specifications: kit model 12AX7 × 6 W453 × H185 × D260 mm 7.9 kg

303UK

Ask 24-42130-04673-00
303
Manufacture:QUAD
Original price: JPY 110,000
Price: JPY 90,727
UK 1967 made
Arrival: 2024-03-25 19:57:14
description
Maintained! A classic British Quad stereo power amplifier. Small in size yet full torque. The sound, which is as deep as a tube amp, exudes an appeal that won't fade. The exterior has a feeling of use over time, such as dullness and small scratches. Serial 62226 (Yonejima Satoshi) Maintenance Information: 2024.3.25 Maintained (INPUT DIN 4P replacement, internal Tr, C, R all checks. DIN4P-RCA female cable created. Operation check, pattern solder processing) Accessories: power cable, connection cable Main specifications: 45W+45W W120×H159×D324mm 8.2 kg

C20(後期)U.S.A

Ask 24-42316-06096-00
C20(後期)
Manufacture:McIntosh
Price: JPY 361,818
U.S.A 1959 made
Arrival: 2024-04-02 19:54:58
description
The disposal price has been reduced. Member discounts are not applicable. 2024/4/2 sales price 448,000 yen This is a late C20 model that underwent full maintenance from the 2023/12 condenser to main VOL replacement. Among Mackin's control amplifiers, this is a popular gem with a particularly rich, glossy tone. Not only jazz, but also the vocal sounds are excellent. The unique, rich, and highly artistic tone shows a particularly good compatibility with vintage speakers. Exterior, front panel characters disappear a lot, dullness, small scratches, abrasions, etc., and there is a feeling of use (Kobayashi Hitoshi) Maintenance information: 2024.4.2 maintenance completed (1/2 W resistor replacement and 3 noise countermeasures replaced) 2023.12.19 maintenance (vacuum tube 6X4, block capacitor, electrolytic capacitor, film capacitor, oil capacitor, resistor, main volume replacement. Gang error correction resistance 1/2 W added, switching noise reduction resistance 1/4 W added. RCA jack and vacuum tube socket caulk repair, operation check.) Accessories: none Main specifications: tubular phono 2 system phono equalizer curve variable use vacuum tube ECC83 x 5 ECC82 x 2 EZ90 x 1 W440 x H165 x D316 mm 8.7 kg

model 8BU.S.A

Ask 24-42637-08714-00
model 8B
Manufacture:marantz
Original price: JPY 165,000
Price: JPY 361,818
U.S.A 1958 made
Arrival: 2024-04-25 20:03:34
description
The price has been drastically reduced. 2024/4/25 sales price 448,000 yen Maintenance is being carried out in 2020. It's a famous machine you can't miss when talking about Marantz sounds of yesteryear. It has a good mid-range fat transfer, and its pleasant sound is an appeal that cannot be obtained anywhere else. You can enjoy the Marantz sounds of the good times. There is some rust and small scratches on the exterior. Serial 8-4160 (Murakoshi Yoichi) Maintenance information: 2020.11.18 maintained (AC code deterioration replacement, 40/40/20 μF and other deterioration replacement, 3 external paint, 20 μF x 2 deterioration replacement, selenium deterioration countermeasures → diode addition · vacuum tube 6BH6 noise exchange · vacuum tube socket and RCA jack caulking repair ※ other operation checked (measured at 32 to 41 W SP: 8 Ω with rated output AC 100 to 117 V) *A2 The EL34 vacuum tube guide pin is broken, but there is no problem with performance. (Part of the SP terminal on the right channel is missing.) Accessories: instruction manual (for replicas, Japanese copy) Main specifications: 35W+35W vacuum tube 6CG7/6BH6/EL34 W348 × H191 × D273mm 22.5 kg

DM601UK

Ask 24-42724-09399-00
DM601
Manufacture:B&W
Original price: JPY 50,000
Price: JPY 27,091(pair)
UK 1996 made
Shop: Osu shop
Arrival: 2024-05-07 20:02:04
description
 B&W bookshelf sized speakers It is equipped with a Nautilus tube and Kevlar cone unit from the higher series. This size is sufficient for clean mid to high ranges and low frequencies without any habit. It goes well with modern sauces. The jumper plate is dull, and there is a small scratch on the upper corner (Daiki Goto) Maintenance information: 2024.5.7 operation confirmed Accessories: instruction manual Main specifications: 2 way 16.5 cm woofer 8 ohm bi-wiring connection possible W204 x H356 x D244 mm 6.1 kg

EL34

Ask 24-42399-08463-00
EL34
Manufacture:SVETLANA
Price: JPY 5,455(pair)
Shop: Osu shop
Arrival: 2024-04-29 20:02:02
description
Pair tube, 6CA7 compatible ball, made in Russia, measured value 44/44 (rejected value 30) with original box ※The pair is determined based on the gM value measured by the test machine TV-7 (Kojima Yosuke) Accessories: original box

5881

Ask 24-42399-08472-00
5881
Manufacture:SOVTEK
Price: JPY 4,545(pair)
Shop: Osu shop
Arrival: 2024-04-29 20:01:58
description
Pair tube 6L6WGB compatible ball Russian short base measurement value 42/42 (rejected value 25) with original box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box

6V6G

Ask 24-42399-08458-00
6V6G
Manufacture:MARCONI
Price: JPY 10,909(pair)
Shop: Osu shop
Arrival: 2024-04-29 20:01:53
description
Pair tube smoke made in Canada JAN measured value 86/76 (rejected value 46) with original box*Pairs are judged based on gM values measured by testing machine TV-7 (Kojima Yosuke) Accessories: original box

6L6GC

Ask 24-42399-08473-00
6L6GC
Manufacture:JJ
Price: JPY 5,909(pair)
Shop: Osu shop
Arrival: 2024-04-29 20:01:26
description
Pair tube ambient heat beam tube measurement value 44/42 (rejection value 25) with original box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box

6L6GC

Ask 24-42399-08474-00
6L6GC
Manufacture:JJ
Price: JPY 5,909(pair)
Shop: Osu shop
Arrival: 2024-04-29 20:01:22
description
Pair tube ambient heat beam tube measurement value 40/38 (rejection value 25) with original box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box

6L6WXT

Ask 24-42399-08470-00
6L6WXT
Manufacture:SOVTEK
Price: JPY 4,545(pair)
Shop: Osu shop
Arrival: 2024-04-28 20:39:57
description
Pair tube Russian lot: 0202/0107 measured value 36/36 (rejected value 25) with original box*Pairs are judged based on gM values measured by testing machine TV-7 (Kojima Yosuke) Accessories: original box

5881

Ask 24-42399-08471-00
5881
Manufacture:SOVTEK
Price: JPY 4,545(pair)
Shop: Osu shop
Arrival: 2024-04-28 20:39:57
description
Pair tube 6L6WGB compatible ball Russian short base measurement value 42/42 (rejected value 25) with original box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box

KT88

Ask 24-42399-08481-00
KT88
Manufacture:RFTLYS
Price: JPY 7,273(pair)
Shop: Osu shop
Arrival: 2024-04-27 20:11:28
description
Pair tube, subthermal beam tube, made in China, seems to have been used in the company's power amplifiers, etc. Measured value 66/64 (rejected value 44) with replacement box*Pairs are determined based on gM values measured by the testing machine TV-7 (Kojima Yosuke) Accessories: replacement box

KT88

Ask 24-42399-08478-00
KT88
Manufacture:WILLSENTON
Price: JPY 7,273(pair)
Shop: Osu shop
Arrival: 2024-04-27 20:11:26
description
Pair tube, subthermal beam tube, made in China, seems to have been used in the company's power amplifiers, etc. Measured value 64/64 (rejected value 44) with replacement box*Pairs are determined based on gM values measured by the testing machine TV-7 (Kojima Yosuke) Accessories: replacement box

Njoe Tjoeb 4000Nederland

Ask 24-42567-08187-00
Njoe Tjoeb 4000
Manufacture:AH!
Original price: JPY 129,150
Price: JPY 54,364
Nederland
Arrival: 2024-04-24 20:04:33
description
Vacuum tube CD players are rarely in stock. It looks like a product manufactured in Germany and the Netherlands based on the MarantzCD-4000 package, and you can comfortably listen to the mild sound quality unique to tube balls and the gorgeous high frequencies that pop out. This is a great item for those who want an accent to the sound. You can see a feeling of use, such as appearance, dullness, abrasions, etc. (Kobayashi Hitoshi) Maintenance information: 2024.4.19 Operation confirmed Accessories: instruction manual Main specifications: W440 x H90 x D270 mm weight 3.82 kg

300B

Ask 24-42575-08585-00
300B
Manufacture:JJ
Price: JPY 36,364(pair)
Shop: Osu shop
Arrival: 2024-04-23 20:12:13
description
Pair tube direct heat triode tube, white base, made in Slovakia, measured value 76/70 (rejected value 58) with original box*Pairs are determined based on gM values measured by testing machine TV-7 (Kojima Yosuke) Accessories: original box

6550

Ask 24-42399-08462-00
6550
Manufacture:TUNG SOL
Price: JPY 13,636(pair)
Shop: Osu shop
Arrival: 2024-04-21 19:40:45
description
Pair tube metal brown base Russian dharma tube measured value 60/58 (rejected value 44) with white box, printing on one side often disappears ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box

6L6GC

Ask 24-42399-08448-00
6L6GC
Manufacture:GE
Price: JPY 18,182(pair)
Shop: Osu shop
Arrival: 2024-04-21 19:40:34
description
Pair tube ambient heat beam tube made in America, measured value 42/40 (rejection value 25) with original box (the claws on one side of the box are missing) *Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box

6L6WGB

Ask 24-42399-08449-00
6L6WGB
Manufacture:PHILIPS ECG
Price: JPY 12,727(pair)
Shop: Osu shop
Arrival: 2024-04-21 19:40:29
description
Pair tube, ambient heat beam tube, made in America, JAN measurement value 42/40 (rejected value 25) with white box ※Pairs are determined based on GM values measured by the testing machine TV-7 (Kojima Yosuke) Accessories: white box

6L6Y

Ask 24-42399-08452-00
6L6Y
Manufacture:RCA
Price: JPY 16,364(pair)
Shop: Osu shop
Arrival: 2024-04-21 19:39:53
description
Pair tube VT-115 equivalent tube, high durability tube, metal tube, tea base, measured value 46/44 (rejected value 25) with white box ※Pairs are determined based on GM values measured with the TV-7 testing machine (Kojima Yosuke) Accessories: white box

6L6Y

Ask 24-42399-08451-00
6L6Y
Manufacture:RCA
Price: JPY 16,364(pair)
Shop: Osu shop
Arrival: 2024-04-21 19:39:36
description
Pair tube VT-115 equivalent tube, high durability tube, metal tube, tea base, measured value 48/46 (rejected value 25) with white box ※Pairs are determined based on GM values measured with the TV-7 testing machine (Kojima Yosuke) Accessories: white box

300B

Ask 24-42399-08459-00
300B
Manufacture:ELECTRO HARMONIX
Price: JPY 7,273(only one piece)
Shop: Osu shop
Arrival: 2024-04-21 19:38:54
description
Single sale direct heat triode tube, made in Russia, white base, measured value 78 (rejected value 58) with original box ※The measured values indicate gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box

KT88

Ask 24-42399-08480-00
KT88
Manufacture:RFTLYS
Price: JPY 7,273(pair)
Shop: Osu shop
Arrival: 2024-04-21 19:38:48
description
Pair tube, subthermal beam tube, made in China, seems to have been used in the company's power amplifiers, etc. Measured value 68/66 (rejected value 44) with replacement box*The pair is determined based on the gM value measured by the testing machine TV-7 (Kojima Yosuke) Accessories: replacement box

ARDEN2UK

Ask 24-42541-07910-00
ARDEN2
Manufacture:TANNOY
Original price: JPY 478,000
Price: JPY 270,909(pair)
UK 1979 made
Arrival: 2024-04-19 19:42:49
description
Full internal and external maintenance completed in 2022! This is the second generation of Tannoy's famous machine ARDEN. The warm and soft tone is attractive. It plays all kinds of music lusciously and gently. In particular, it works great with vacuum tube amplifiers, and the sense of orchestra scale and smooth playback of stringed instruments are satisfying enough to listen to. The exterior has some impact scratches and board repair marks on one side of the hakama part. Serial 003354/003047 (Fujisawa Yukishi) Maintenance information: 2022.9.23 Maintained (terminal screws, rust removal, acid washing, cleaning. Internal connection terminal (faston) replaced with a new one. ATT (SW type) contact cleaning. A frequency characteristic measurement check (~ 42 kHz) was performed, and the original capacitor was continuously used because the results were good. Check the input/output waveform and balance, and check the sound output. Unit maintenance (high range side: magnetic circuit gap cleaning/center adjustment) exterior repair/polishing/oil finish. Front and rear baffles/hakama repair/painting Saran net replacement) Accessories: saran net Main specifications: 2 way, 1 speaker, bass reflex system, floor type specification unit 3828, crossover frequency, 1 kHz, output sound pressure level, 91.5 dB, 8 ohms, dimensions W660 x H990 x D370 mm, weight 43 kg/book

211

Ask 24-42530-07890-00
211
Manufacture:PSVANE
Price: JPY 15,455(pair)
Shop: Osu shop
Arrival: 2024-04-19 19:45:17
description
Pair tube large transmission tube direct heat triode tube made in China gold base gold foot measured IP value 47mA/47ma (the best standard IP value for this amplifier is 50mA) with original box (part of the box is damaged) *Sound is checked with a test amplifier, plate current values have been measured, and it has been determined that operation is good (Kojima Yosuke) Accessories: original box
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